This inventor holds 2 USPTO granted patents and 2 published patent applications and 1 EPO patent. Top assignees: Huawei Technologies Co., Limited, Huawei Technologies Co., Ltd.. Active years: 2026.
Company Filing History:

Years Active: 2026
Title: Chaofan Song - Innovator in Semiconductor Technology
Introduction
Chaofan Song is a prominent inventor based in Shanghai, China. He has made significant contributions to the field of semiconductor technology. His innovative work has led to the development of a patent that addresses critical challenges in semiconductor devices.
Latest Patents
Chaofan Song holds a patent for a semiconductor device, along with a related module, circuit, and preparation method. The patent describes a semiconductor device that includes an N-type drift layer, a P-type base layer, N-type emitter layers, gates, a field stop layer, and a P-type collector layer. The field stop layer features a first doped region and a second doped region that are successively stacked on the surface of the N-type drift layer. Notably, the particle radius of an impurity in the first doped region is less than that in the second doped region. The doping densities of both regions are higher than that of the N-type drift layer. This innovative semiconductor device effectively reduces the collector-emitter leakage current of an IGBT.
Career Highlights
Chaofan Song is currently employed at Huawei Technologies Co., Limited, where he continues to advance his research and development efforts in semiconductor technology. His work has garnered attention for its potential to enhance the performance and efficiency of semiconductor devices.
Collaborations
Chaofan has collaborated with notable colleagues, including Boning Huang and Wentao Yang. Their combined expertise contributes to the innovative environment at Huawei Technologies.
Conclusion
Chaofan Song's contributions to semiconductor technology exemplify the impact of innovation in this critical field. His patent reflects a commitment to advancing technology and improving device performance.